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6
CONNECTION IN BI-WIRE MODE
Please note in bi-wire mode that the link bars must be removed. Unscrew the knurled nuts
on both the positive and negative HF and LF terminals and remove the link bar and then
replace the colour-coded nuts, as they will be required to clamp the bi-wire cables in
place. Retain the link bars in a safe place for possible future use.
• Be sure that the amplifier is switched OFF and then prepare the two sets of cabling for
each 'side' of the system separately. Measure and cut four lengths of cable, two per
speaker. Label two of the cable lengths Left LF and Left HF (low frequency and high
frequency) then repeat this process for the right pair.
• If your amplifier is not equipped with separate output terminals for bass and treble
information then, at the amplifier end of the cables, twist the Left LF+ (positive) and the
Left HF+ (positive) together. Connect these to the amplifier Left channel positive terminal
marked + (plus) or coloured red.
Twist the Left LF- (negative) and the HF- (negative) cables together and connect them
to the amplifier Left channel negative terminal marked - (minus) or coloured black.
At the loudspeaker end connect the cables labelled Left LF+ and Left LF- to the left hand
loudspeaker LF terminals, ensuring that you note the polarity markings on the cable
sheathing.
Then proceed to connect the Left HF+ and Left HF- to the HF terminals on the same
loudspeaker.
• Repeat this process to connect the right hand loudspeaker to the amplifier right channel
output, once again ensuring that polarity is correct throughout.
• Switch the amplifier on with the volume control set at its lowest setting. Select a favourite
source and slowly turn up the volume to a low level. Check that bass and treble
information is being reproduced from both speakers - if not, switch off the amplifier
and recheck the connections. (See fig. 4 & 8)
BI-AMPING
Bi-Amping extends the principle of bi-wiring one stage further. In this connection option
separate power amplifiers are used for bass and treble signals in each loudspeaker. Four
mono (or two stereo) amplifiers of the same type are required for a stereo pair of
loudspeakers. Ensure that the cable links between the loudspeaker terminals are removed
and that correct polarity is maintained throughout.
If two stereo amplifiers are used, it is recommended that one amplifier supply bass information
to left and right loudspeakers and the other, the treble information. (See fig. 5 & 9)
POSITIONING AND FINE-TUNING
To get best results from your new Tannoy Sensys loudspeakers it is worthwhile spending
a little time finding the optimum set-up configuration.
Begin by angling the speakers towards your chosen listening position, usually this is on
the centre line of the room, so that when seated you can just see the inner side panel of
each speaker. The front of the loudspeaker should not be obstructed in any way. The
loudspeakers should be located between 1.5 to 4.5 metres (5ft to 15ft) apart - with the
listening position set slightly further away than the speakers are apart. Avoid positioning
the loudspeakers in corners of the room, as this will have a negative effect on performance.
Ideally, maintain a distance of at least 0.5 metres (20 inches) from the rear wall, and 1
metre (39 inches) from the side.
With the speaker in its listening position, rock the loudspeaker gently from side to side so
that the spikes find their way through the weave of the carpet and on to the solid surface
below. Once fine adjustments have been made to the spikes, to level the loudspeaker and
ensure stability, tighten the lock nuts firmly but without using undue force. (See fig. 10)